2003 YAMAHA WR 250F clutch

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Page 510 of 860

YAMAHA WR 250F 2003  Manuale duso (in Italian) 4 - 185
ENGAC MAGNETO AND STARTER CLUTCH
AC MAGNETO AND STARTER CLUTCH
Extent of removal:
1 Starter clutch/wheel gear removal
2 Rotor removal
3 Pickup coil/stator removal
Extent of removal Order Part

Page 514 of 860

YAMAHA WR 250F 2003  Manuale duso (in Italian) 4 - 189
ENGAC MAGNETO AND STARTER CLUTCH
Extent of removal Order Part name Q’ty Remarks
10 Nut (rotor) 1
11 Rotor 1 Use special tool.
Refer to “REMOVAL POINTS”.
12 Woodruff key 1
13 Starter clut

Page 518 of 860

YAMAHA WR 250F 2003  Manuale duso (in Italian) 4 - 193
ENGAC MAGNETO AND STARTER CLUTCH
EC4L3000REMOVAL POINTS
Rotor
1. Remove:
Nut (rotor) 
1 
Plain washer
1
2. Remove:
Rotor 
1 
Use the rotor puller 
2.
Rotor puller:
YM-04141/90890-04141
EC4L

Page 520 of 860

YAMAHA WR 250F 2003  Manuale duso (in Italian) 4 - 195
ENGAC MAGNETO AND STARTER CLUTCH
3. Check:
Starter clutch operation
Install the starter clutch drive
gear 
1 onto the starter clutch
2 and hold the starter clutch.
When turning the starter

Page 522 of 860

YAMAHA WR 250F 2003  Manuale duso (in Italian) 4 - 197
ENGAC MAGNETO AND STARTER CLUTCH
2. Install:
Holder 
1 
Bolt 
2 
CAUTION:
Pass the pickup coil lead and
charging coil lead under the
holder while taking care not to
allow these leads to get

Page 524 of 860

YAMAHA WR 250F 2003  Manuale duso (in Italian) 4 - 199
ENGAC MAGNETO AND STARTER CLUTCH
6. Install:
Woodruff key 
1 
Rotor 
2 
NOTE:Clean the tapered portions of the
crankshaft and rotor.
When installing the woodruff key,
make sure that its fl

Page 526 of 860

YAMAHA WR 250F 2003  Manuale duso (in Italian) 4 - 201
ENGAC MAGNETO AND STARTER CLUTCH
11. Install:
Engine guard 
1 
Clamp 
2 
Bolt [engine guard (front)] 
3 
Bolt [engine guard (rear)] 
4 
Cylinder head breather hose
5 
T R..23 Nm (2.3 m ·

Page 528 of 860

YAMAHA WR 250F 2003  Manuale duso (in Italian) 4 - 203
ENGENGINE REMOVAL
EC4M0000
ENGINE REMOVAL
Extent of removal Order Part name Q’ty Remarks
ENGINE REMOVAL
Preparation for removal Hold the machine by placing the suitable 
stand under the fram
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